Need to automatically reply to text messages on Android? Whether you're driving, in a meeting, or simply don't want to be disturbed, setting up SMS auto-reply keeps people informed without you having to manually respond.
In this guide, I'll show you exactly how to set up automatic SMS replies on your Android phone — including advanced features like keyword-based responses and time scheduling.
⚡ Quick Answer
Android doesn't have built-in SMS auto-reply. You need a third-party app like AutoReply Mate which uses notification access to automatically send text message replies based on your custom rules.
Why Auto Reply to SMS Messages?
Here are the most common scenarios where SMS auto-reply is essential:
- Driving safety: Let people know you're driving and will respond when parked
- Work meetings: Professional auto-away messages during important meetings
- After hours: Inform clients/customers about your availability
- Vacation mode: Set expectations when you're out of office
- Do Not Disturb: Acknowledge messages without checking your phone
Does Android Have Built-In SMS Auto Reply?
No. Unlike some car-specific features, stock Android doesn't include automatic SMS reply functionality. However, some manufacturers add it:
- Samsung: "Driving mode" in some models (very limited)
- Google Pixel: No built-in SMS auto-reply
- OnePlus, Xiaomi, Oppo: No built-in feature
The most reliable way to get SMS auto-reply on any Android phone is using a dedicated auto-reply app.
Best Method: Using AutoReply Mate
AutoReply Mate is the most comprehensive solution because it:
- ✅ Works with SMS AND other apps (WhatsApp, Telegram, etc.)
- ✅ Supports keyword-based rules
- ✅ Allows time scheduling
- ✅ No root required
- ✅ Works 24/7 in background
Step-by-Step: Set Up SMS Auto Reply on Android
1Download AutoReply Mate
First, download the app from Google Play:
Download AutoReply Mate (Free Trial)
✓ Free 7-day trial
✓ No credit card required
✓ Works on Android 6.0+
2Grant Notification Access Permission
The app needs to detect incoming SMS messages:
- Open AutoReply Mate
- Tap "Grant Notification Access"
- You'll be redirected to Settings
- Find "AutoReply Mate" in the list
- Toggle ON
- Return to the app
Note: This permission only allows the app to read SMS notifications, not your full SMS history.
3Enable SMS Auto Reply
Configure SMS specifically:
- In AutoReply Mate dashboard, find the "SMS" card
- Tap "Configure"
- Toggle "Enable Auto Reply" to ON
- The SMS auto-responder is now active
4Set Your Auto Reply Message
Create your automatic text message response:
- Tap "Reply Message"
- Type your auto-reply text. Examples:
Driving: "I'm driving right now. I'll text you back when I arrive safely."
Meeting: "I'm in a meeting. I'll respond within the hour."
After Hours: "Thanks for your message! I'm currently unavailable. I'll respond during business hours (9am-5pm)."
Vacation: "I'm on vacation until June 10th. For urgent matters, please email support@company.com" - Use dynamic variables:
{sender}- sender's name (if in contacts){time}- current time{message}- the message they sent
- Tap Save
5Optional: Set Up Advanced Rules
Keyword-Based SMS Replies:
Reply differently based on message content:
- When message contains "urgent": "Got it! I'll call you within 10 minutes."
- When message contains "eta" or "arriving": "I'll be there at 3pm."
- When message contains "meeting": "I'm in a meeting, will reply soon."
Time-Based Scheduling:
Different messages for different times:
- 9am - 5pm (work hours): "I'm at work. I'll respond during my break."
- 5pm - 9am (after hours): "I'm unavailable. I'll respond tomorrow morning."
- Weekends: "It's the weekend! I'll check messages on Monday."
Contact Filtering:
Choose who gets auto-replies:
- Everyone: All SMS senders get auto-reply
- Contacts only: Only saved contacts
- Non-contacts only: Unknown numbers only
- Exclude specific people: Don't auto-reply to family/close friends
Cooldown Protection:
Prevent spamming the same person:
- Set cooldown: e.g., 24 hours
- Person gets auto-reply on first SMS
- If they text again within 24h, no auto-reply
- Avoids annoying repetitive messages
6Test Your SMS Auto Reply
Before going live, test it:
- Ask a friend to send you an SMS
- Check if they receive your auto-reply
- Adjust your message if needed
- Test different keywords and time schedules
Free Alternatives for SMS Auto Reply
1. SMS Auto Reply (Free App)
Pros: Free, simple, SMS-only
Cons: SMS only (no WhatsApp, Telegram), ads, basic features
2. Do It Later (SMS Auto Reply)
Pros: Free option available
Cons: Limited free version, doesn't work with other apps
3. AutoReply Mate
Pros: Works with SMS + WhatsApp + Telegram + more, advanced features, no ads
Cons: Requires subscription after 7-day trial
Does SMS Auto Reply Work When Phone is Off?
No. SMS auto-reply requires your phone to be:
- ✅ Powered on
- ✅ Connected to network (cellular or WiFi for some apps)
- ❌ Does NOT need to be unlocked (works with screen off)
- ❌ Does NOT need the app open (runs in background)
The auto-reply app runs as a background service, so it works even with your screen off and the app closed.
Will Auto Reply SMS Drain My Battery?
No. Modern auto-reply apps like AutoReply Mate are battery-optimized:
- Only activates when SMS notification arrives
- Uses minimal resources
- Efficient background processing
- Most users report < 1% battery impact
Common SMS Auto Reply Use Cases
1. Driving Mode
Message: "I'm driving. I'll text back when it's safe. If urgent, please call."
Setup: Manual activation when you get in the car, or trigger based on Bluetooth connection to car
2. Business Hours
Message (after hours): "Thanks for contacting [Business Name]. Our office hours are M-F 9am-5pm. We'll respond during business hours."
Setup: Schedule 5pm-9am + weekends
3. Vacation Auto-Responder
Message: "I'm on vacation until [date]. For urgent matters, contact [alternate person/email]."
Setup: Enable for vacation dates, disable when back
4. Meeting Mode
Message: "In a meeting. Will respond in ~1 hour."
Setup: Quick toggle on/off during meetings
SMS Auto Reply Best Practices
1. Be Clear It's Automatic
Consider adding "(Automatic reply)" so people know you haven't personally read their message yet.
2. Set Expectations
Always include WHEN you'll respond:
❌ Bad: "I'll get back to you."
✅ Good: "I'll respond within 2 hours."
3. Provide Alternatives for Urgent Matters
Include a phone number or email for emergencies:
"For urgent matters, please call: 555-1234"
4. Use Cooldown Protection
Don't spam the same person with multiple auto-replies. Set a 12-24 hour cooldown.
5. Test Before Activating
Always test with a friend before using it in real situations.
Frequently Asked Questions
Can I auto-reply to SMS from specific numbers only?
Yes. AutoReply Mate allows contact filtering. You can reply to specific numbers, contacts only, or exclude certain people.
Does SMS auto-reply work with group texts?
Yes, but you can configure it to exclude group messages if you prefer.
Can I use this for WhatsApp too?
Yes! AutoReply Mate works with WhatsApp, SMS, Telegram, Messenger, Instagram, and more — all from one app.
Is there a limit to how many auto-replies I can send?
No artificial limits. The cooldown feature prevents spamming the same person repeatedly.
Will people know it's an automatic reply?
Only if you include "(Auto-reply)" in your message. Otherwise it appears as a normal SMS.
Ready to Set Up SMS Auto Reply?
Download AutoReply Mate and start auto-replying in 5 minutes
Try Free for 7 Days →Summary
Setting up automatic SMS replies on Android is simple with the right app. Here's the quick process:
- Download AutoReply Mate from Google Play
- Grant notification access permission
- Enable SMS auto-reply
- Set your custom message
- Optional: Configure rules, schedules, filters
- Test and activate
Unlike basic SMS-only apps, AutoReply Mate lets you manage auto-replies for WhatsApp, Telegram, Messenger, and more — all in one place.